Women with tattooed chests are as bad as guys wearing their 'pants on the floor' ^^
Don't watch then...
For many girls (and guys) a tattoo is a personal decision, she didn't get the tattoo for you or anyone else. If you don't like her body then there's a simple solution..don't watch.
I personally like the tattoo and think she's hotter with it. It gives her an added flare of character.
I'm not a fan of tats but if you're going to get one, why there? Boobies don't need decorations, they are decorations all on their own.